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March 1949. c. s. WEYANDT ELECTROMAGNETIC VIBRAT OR 2 Shets-Sheet 1Filed Aug. 7, 1945 llllllllllll ll Imventor oayz swe andta/ (IttomegMarch 1, 1949. C, s, WEYANDT 2,463,448

ELECTROMAGNET IC VIBRATOR Filed Aug. 7, 1945 2 Sheets-Sheet 2 24- -4- ffi i ry fl/ WCy d attorney;

Patented Mar. 1, 1949 "Ki-i I- II f :1 Er" UNITED STATES PATENT OFFICE2;16344-8 ELECTROMAGNETIC vffllmffiit GaflS. Weyandt, Homer fli ty, Pa.

Application August 7', 1945, 'seriai'No. 609,416

e-drums. (Cl. 271-:89) I p 1 2 invention 'fl-ates to a vibratorparticutherefor. As these supports are alike in corilarly suitable forproducing stacks of iamiriae', stiuotiongorily one of them Will bedescribed in suoh as paper '01 cards; with the edges in al'ig'ridetail.The supporting member zt oon pi ises a merit. N chahne1=siiape& iiittalstrip' zl with holes 2-8 It is an object of the invention to provide a aformed mediaiilytherethrough 'at'in'te'rvals' aloiig vibratory apparatuafda'pt'e'ci to-re'eeive a'stadk of the strip, the rubber pads '29 and-31 have one laminae "forrapidly vibrating thestack to cause oi theirrespective ia'ce's secured to each side of the edges tobeoome-aligned.the 'oharinelstrip '21- by vulcanization or in any Another dbjeet is therovision of "a vibrating othe suitable manner. The pads are right andapparatus whieh is relatively noiseless, compact 1o left hand, 'ai dthefaces thereof are substantially and readily controlled by the operator.parallel. The ends of the pads preferably are' These and other objectsof the inventio will formed as a 'fiil'et' toi'eii'uoe tension -ontheioir t be apparent from a consideration of the followbetwe'eii the metalrobber at its ends. A'ngfle" ing specification taken in connection withthe strips 32 a'iii'd '33 are vulcanized to the o posite annexeddrawings showing a preferred embodiif; faces of jt'h'e pads f9 :inci '3I arid on one side merit of the invention by way of example, and screws34pass "through holes 35 in the aiigl'es'tfip wherein: to securethe-vibratory member to the tal-bl'e '21. Figure 1 is a rear view of apreferred embodi- Bo1ts--36,"passiiig throi gh holes 28 iii the V iblfirment, ti oiij members 23 and fiend through holes 31 in Figurez is asection view taken on line. II-II 2h the haiiig'esii, 6 "secure thevibration membersto' of Fig'ui-e '1, the casing". llhiatilre 38 iii theform 0'1" 3 FlgureB- is a top viewof t'he housing of Figure lamihatelibar has angle-strips 39 and Hi rivetedi 1 with the table and vibratingmechanism reto the sides thereof, and is welded o'i otherwise moved,secured to a bar K2 which in turn is secured to Figure '4' is ab'ottoiiview simiIafto-Figtire 3, 2.5 thetable zlj'pfeferablyby bolts 43'.Figure 5' is s front View or a modification set At the. bottom at oneside the casin has a within a oabinet, vertical wall 45 with "areen'forcifig ortion- =86 ex- Figureo'is'asideview-of thek'n switchmeohtending at right angles the'retqami at the top ahism, V mer'g'in'gshelves 6 and 6'. This wall is bored Figure '7 is a top View oi thekiiee switch m'e'cliat 41 to receive lbo-ltsj fe which ass through theariis'm, eiiterior angle .pfat'es 5| of a vibratory member 52' Figure '8is a lfrbnt view of the switch m'e c'lisimilar to members 23 ar d if! tohold the memanism on n enlarged-scale, aria ber 52 in osition on wall45. A bolt '53 p sses Figure '9 is a side view of a detail. through themiddle ohaniiel of strip 54 of vibrafiefei liii'g to the drawin Figure1, "tI'ieije' is .35 to'ry member 5 2 and secures a "plurality ofiteetishown tt casing which prefereblyis iii the 'i'orm fiei disks 3 5thereto, an insulation washer 56 of an integral heavy casting i having amiddle being interposed. These're'otiiier disks referably bracket '2'with reeri'forein'g ribs 3', 3'., and a botafe'oi the copper oxide type,althou h any other tom bar 4 and connecti'iig sloped side portions '5suitable form 'of iectifier' may be emplo ed. A merging-With a flange;or she f '6, 6" extending to 'cor d iit 5'1 ooritairrs'eobductorsconnected to-the' internally along" the eii'ci'sof'the easti'rig". E}rectifier disks aa'rid at its opposite end "is boris ii d lec'tromagnetlima'iieup oi -mi i' ifis netted to a tfeadietype switch ss Whieh may beriveted-together has angle plates ll an i f2 cdiiti "byeoiid uctfdr'sfifi and iiiale plug 6U to riveted thef'fid fifi opiiosifte elites, andbolts f3 i v ass through" holes -|I, surrounded by 'firi'ish'e'delevatedi bosses it, and the angle -plates to hold the *eleetromeerietin position. The iriidtiifl; of the e1eetromagiiet is surrounded byecoil is of Wire; suitably held thereon by a clip i1 ar' ifl- "manner toooii-t'rol the actuating currentresting" on an insulating anduls'hiohingibai i8. "foft e el'oti-oiiiagnt. Th bottom of case lhas The"table '21 referably is constructed oihardcoil springs 63* or othersuitable" vibrator 'me'r'i wood, such "as maple, but'may'be of metal,ressed fibrous com osition, or other suitable inaterial. A pair oi'vibration iiiembers 23 asiiti 2t on o I posite sides of tbibf I iserve: as 'sia'lifig tsor other part oi the circuit iii able source ofalternating current, through conductor 59, switch 58 and conductor 51 tothe rheostat BI and to the rectifier 55, which passes successive currentimpulses of like polarity spaced by zero current intervals. Thisintermittent pulsating current which is controlled by rheostat 6|, istransmitted to coil 16 on the electromagnet l and causes armature 38 tobe intermittently attracted so as to vibrate and cause vibration oftable 2| to which it is connected, the amplitude of vibration beingregulated by the rheostat 6|. For example, if plug 60 is connected to asixty cycle source of alternating current, this being most commonlyemployed in commercial wiring,

the armature and table will be vibrated at the rate of 3600 times perminute. If a current source of 25 cycles is used the table vibrates 1500times per minute. The specific type of vibration members 23 and 24 shownis preferred because of the I elimination of noise and its long life,the rubber pads being vibrated in a state of shear or tension, and theyare selected to have, with the table, a natural frequency of vibrationclose to the recurrence periodicity of the current impulses. Forexample, the vibrating mass may be one fifth or less of the weight ofthe non-vibrating base.

In stacking paper or cards, the stack of paper 64 (Figure 5) is placedendwise on the table and is supported against toppling by the hands ofthe operator or by any other support, and the operator new steps ontreadle switch 58 to actuate the electromagnet and cause table 2| tovibrate substantially vertically at a rate of 1500 times per minute ormore. The vibration of the table is transmitted to the paper stack andappears to free the individual sheets of paper so that they may falluntil the ends of all of them rest on the table to form a smooth edgestack. The stack then may be turned at right angles to align the otheredges of the paper, and to prevent the papers from getting out ofalignment they may be supported edgewise against a surface at rightangles to table 2|.

In the modification shown in Figures 5 to 9, wherein like parts arecorrespondingly numbered, the casing l is supported by the springs 63 onthe internal shelf of a cabinet 66 which contains an operating orinitiating switch. Inside cabinet 60 on a shelf 65 is secured an anglestrip 68 to which is secured a plate ll carrying the switch mechanism. Aportion of plate H is turned up at 12 and a plate 13 of rubber or othersuitable flexible or resilient material is secured thereto between plateM and turned up portion 12 by bolts 15. To the other end of plate 13 issuitably secured as by rivets 16, a switch operating arm 11 so that therubber plate 13 forms a flexible hinge which does not transmit anysubstantial Vibration to arm H. A rubber covered handle 18 extendsthrough the opening 8! in the all;

cabinet, and a sponge rubber cushion 82 held in the opening ill of thecabinet inany suitable.

manner is employed to further dampen vibration of the handle. A switchcase 83 secured on plate H may contain a snap acting switch of anysuitable type, fOr example, like that disclosed in Patent No. 2,172,673,issued on August 12, 1939, to Malcolm W. Eaton, and has an actuatingbutton or rod 84 extending therefrom adapted to be contacted by switcharm 11. An extension 85- of plate "H has a pin 88 extending therefrom towhich is fastened one end of helical spring 81, the other end beingfastened to an eye 88 in switch arm ll. Spring 87 preferably is coveredby a tubing 89. of rubber or other vibration damp- 'ment.

4 ing material. Spring 81 biases arm 11 to the left as seen in Figure 7and when the switch arm 11 is moved to the right it pushes rod or button84 and closes the snap action switch in case 83 to actuate theelectromagnet. The preferred construction is such that arm 11 canovertravel a considerable distance in actuating the switch.

In operation the operator holds a stack of papers on edge on thevibrator table 2| and with his knee pushes switch handle 18 to the rightto actuate the switch 83 and start the table 2| vibrating until theedges of the paper are in align- When the operation is finished hereleases the switch handle 18 by withdrawing his knee and the spring 81retracts the arm 1'! and 7 allows switch 83 to open to stop operation ofthe table. The hingin g of the switch arm 11 on a vibration absorbingpivot prevents or reduces transmission of vibrations thereto, whichwould be extremely disagreeable to the operator, and the sponge rubbercushion also prevents transmission of vibration from the cabinet to thehandle.

Preferably the cabinet is set on vibration absorbing pads 9! or springsto prevent transmission of I vibration to the fioor,

Various modifications may be made without departing from the spirit orscope of my invention.

What I claim as my invention and desire to secure by United StatesLetters Patent is:

1. In a paper jogger the combination of, a base, a table, spaced rubbermembers for resiliently supporting the table on said base for vibrationrelative thereto in a vertical rectilinear path, a

vibratory motor having an armature member and an electromagnetic fieldmember, means for securing the armature member directly to the un-.derside of the table substantially centered be-v tween the spaced rubbermembers, means to independently secure the field member on the base.

to hold said members in operative spaced relaticn and to provide amagnetic coupling there between, and means to electrically energize the'field member and rapidly oscillate the armature member relative theretoto vibrate the table,

2. In a paper jogger the combination of a relatively heavy base, a tableof relatively less mass, spaced spring members for resilientlysupporting the table on said base for vibration relative thereto in avertical rectilinear path, a vibratory motor having an aramature memberand an electromagnetic field member, means for securing the armaturemember directly to the underside of the table substantially centeredbetween the spaced supporting members, means to independently secure thefield member on the base to hold said members in operative spacedrelation and to provide a magnetic coupling therebetween, and means toelectrically energize the field member and rapidly oscillate thearmatable.

3. In a paper jogger the combination of a base, a table, spaced springmembers for resiliently supporting the table on said base for vibrationrelative thereto in a verticalrectilinear path, a single vibratory motorhaving an armature member and an electromagnetic field member, means forsecuring the armature member directly to the underside of the tablesubstan-. tially centered between the spaced supporting members, meansto independently secure the field member on the base to hold saidmembers in operative spaced relation and to provide a magnetic couplingtherebetween, means for energizing the field member with intermittentcurrent pulsations obtained by rectifying alternating current to rapidlyoscillate the armature member relative to the field member withoutphysical contact with one another to silently vibrate the table, andmeans to regulate the amplitude of vibration of the table while theoperation of the motor subsists.

4. In a paper jogger the combination of a base, a table, spaced rubbermembers for resiliently supporting the table on said base for vibrationrelative thereto in a vertical rectilinear path, a vibratory motorhaving an armature member and an electromagnetic field member, means forsecuring the armature member directly to the underside of the tablesubstantially centered between the spaced rubber members, means toindependently secure the field member on the base to hold said membersin operative spaced relation and to provide a magnetic couplingtherebetween, means to electrically energize the field member andrapidly oscillate the armature member relative thereto Without physicalcontact between the members to silently vibrate the table, and means toregulate the amplitude of vibration of the table to adapt it to thecharacer of paper being jogged.

5.1n a paper jogger the combination of a base, a table to support thepaper to be jogged, spaced spring means to resiliently support the tableon the base for vibration relative thereto in a vertical rectilinearpath, a single vibratory motor having an armature member and anelectromagnetic field member, means to secure the armature memberdirectly to the underside of the table substantially centered betweenthe spaced supporting means, means to independently secure the fieldmember on the base to support said members in operative spaced relationand provide a magnetic coupling therebetween, and means to rectifyalternating current and electrically energize the field member andrapidly oscillate the armature member secured to the table to vibratethe latter relative to the base.

6. The structure of claim 5 characterized in that said armature isstraight and the electromagnetic field member is provided with aplurality of spaced poles.

7. In a paper jogger the combination of a base in the form of a verticalwalled enclosure, support means carried by the base within the walls andspaced from the top of the latter, a table covering the walledenclosure, spaced rubber members resiliently supporting the table forvibration in a vertical rectilinear path on said support means to bringthe table into relative close relation to the top of the walledenclosure, an armature mounted directly on the underside of the tablesubstantially centered between the spaced rubber members, anelectromagnetic field member supported within the base in operativespaced relation to the armature to provide a magnetic couplingtherebetween, and means to electrically energize the field member torapidly oscillate the armature secured to the table to vibrate thelatter.

8. The structure of claim 7 characterized in that said last mentionedmeans includes an electrical rectifying device, and means to resilientlysupport said device within the base.

9. The structure of claim 7 characterized in that said last mentionedmeans includes an electrical rectifying device, means to resilientlysupport said device within the base, and means to regulate the amplitudeof vibration of the table to adapt it to the character of paper beingjogged.

CARL S. WE-YANDT.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,180,189 Alvord Nov. 14, 19392,257,688 Jones Sept. 30, 1941 2,398,777 Burke Apr. 23, 1946

